#include "DVC11xx.h"
#include "delay.h"
#include <stdio.h>
#include "drv_soft_iic.h"
#include "drv_pin.h"
#include "main.h"

static Drv_I2c_Bus dvc11xx_iic_bus;
static int8_t dvc11xx_iic_index = 0;
TAFERegs g_AfeRegs;
static const uint8_t crc8_table[256] ={//查表法(生成多项式x8+x2+x+1)
    0x00, 0x07, 0x0e, 0x09, 0x1c, 0x1b, 0x12, 0x15, 0x38, 0x3f, 0x36, 0x31, 0x24, 0x23, 0x2a, 0x2d,
    0x70, 0x77, 0x7e, 0x79, 0x6c, 0x6b, 0x62, 0x65, 0x48, 0x4f, 0x46, 0x41, 0x54, 0x53, 0x5a, 0x5d,
    0xe0, 0xe7, 0xee, 0xe9, 0xfc, 0xfb, 0xf2, 0xf5, 0xd8, 0xdf, 0xd6, 0xd1, 0xc4, 0xc3, 0xca, 0xcd,
    0x90, 0x97, 0x9e, 0x99, 0x8c, 0x8b, 0x82, 0x85, 0xa8, 0xaf, 0xa6, 0xa1, 0xb4, 0xb3, 0xba, 0xbd,
    0xc7, 0xc0, 0xc9, 0xce, 0xdb, 0xdc, 0xd5, 0xd2, 0xff, 0xf8, 0xf1, 0xf6, 0xe3, 0xe4, 0xed, 0xea,
    0xb7, 0xb0, 0xb9, 0xbe, 0xab, 0xac, 0xa5, 0xa2, 0x8f, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9d, 0x9a,
    0x27, 0x20, 0x29, 0x2e, 0x3b, 0x3c, 0x35, 0x32, 0x1f, 0x18, 0x11, 0x16, 0x03, 0x04, 0x0d, 0x0a,
    0x57, 0x50, 0x59, 0x5e, 0x4b, 0x4c, 0x45, 0x42, 0x6f, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7d, 0x7a,
    0x89, 0x8e, 0x87, 0x80, 0x95, 0x92, 0x9b, 0x9c, 0xb1, 0xb6, 0xbf, 0xb8, 0xad, 0xaa, 0xa3, 0xa4,
    0xf9, 0xfe, 0xf7, 0xf0, 0xe5, 0xe2, 0xeb, 0xec, 0xc1, 0xc6, 0xcf, 0xc8, 0xdd, 0xda, 0xd3, 0xd4,
    0x69, 0x6e, 0x67, 0x60, 0x75, 0x72, 0x7b, 0x7c, 0x51, 0x56, 0x5f, 0x58, 0x4d, 0x4a, 0x43, 0x44,
    0x19, 0x1e, 0x17, 0x10, 0x05, 0x02, 0x0b, 0x0c, 0x21, 0x26, 0x2f, 0x28, 0x3d, 0x3a, 0x33, 0x34,
    0x4e, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5c, 0x5b, 0x76, 0x71, 0x78, 0x7f, 0x6a, 0x6d, 0x64, 0x63,
    0x3e, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2c, 0x2b, 0x06, 0x01, 0x08, 0x0f, 0x1a, 0x1d, 0x14, 0x13,
    0xae, 0xa9, 0xa0, 0xa7, 0xb2, 0xb5, 0xbc, 0xbb, 0x96, 0x91, 0x98, 0x9f, 0x8a, 0x8d, 0x84, 0x83,
    0xde, 0xd9, 0xd0, 0xd7, 0xc2, 0xc5, 0xcc, 0xcb, 0xe6, 0xe1, 0xe8, 0xef, 0xfa, 0xfd, 0xf4, 0xf3
};

/**
	* @说明	crc8计算
	* @参数	数据地址、长度
	* @返回值	uint8_t crc值
	* @注	
*/
static uint8_t crc8_calc(void *dataPtr,uint16_t dataLen) {//查表法
    uint8_t carry = 0;
    while (dataLen--) {
        carry = crc8_table[carry^(*(uint8_t *)dataPtr)];
        dataPtr=(uint8_t *)dataPtr+1;
    }
    return carry;
}

static bool dvc11xx_read_bytes_crc8(uint8_t adr, uint16_t len, uint8_t* buf){
    uint16_t i = 0;
    uint8_t crc8_recv = 0;
    uint8_t crc8 = 0;
    uint8_t temp[4];

    dvc11xx_iic_bus.start(dvc11xx_iic_index);
    dvc11xx_iic_bus.send_byte(dvc11xx_iic_index,(uint8_t)0x40); // 写
    dvc11xx_iic_bus.wait_ask(dvc11xx_iic_index);

    dvc11xx_iic_bus.send_byte(dvc11xx_iic_index,(uint8_t)adr); // 发送寄存器地址
    dvc11xx_iic_bus.wait_ask(dvc11xx_iic_index);

    dvc11xx_iic_bus.start(dvc11xx_iic_index);
    dvc11xx_iic_bus.send_byte(dvc11xx_iic_index,(uint8_t)0x41); // 读	
    dvc11xx_iic_bus.wait_ask(dvc11xx_iic_index);
    
    for (i = 0; i < len; i++){
        buf[i] = dvc11xx_iic_bus.read_byte(dvc11xx_iic_index,1);
        crc8_recv = dvc11xx_iic_bus.read_byte(dvc11xx_iic_index,i < (len - 1));  //读最后一字节 NACK
        if (i == 0){
            temp[0] = 0x40;
            temp[1] = adr;
            temp[2] = 0x41;
            temp[3] = buf[i];
            crc8 = crc8_calc(temp, 4);
        }else{
            temp[0] = buf[i];
            crc8 = crc8_calc(temp, 1);
        }
        if (crc8 != crc8_recv){
            dvc11xx_iic_bus.stop(dvc11xx_iic_index);
            return false;
        }
    }
    dvc11xx_iic_bus.stop(dvc11xx_iic_index);
    return true;
}

static bool dcv11xx_write_bytes_crc8(uint8_t adr, uint16_t len, uint8_t* buf){
    uint16_t i = 0;
    uint8_t crc8 = 0;
    uint8_t temp[4];
    dvc11xx_iic_bus.start(dvc11xx_iic_index);
    dvc11xx_iic_bus.send_byte(dvc11xx_iic_index,(uint8_t)0x40); // 发送写命令
    if (dvc11xx_iic_bus.wait_ask(dvc11xx_iic_index)){
        return false;
    }
    dvc11xx_iic_bus.send_byte(dvc11xx_iic_index,adr); // 发送地址
    if (dvc11xx_iic_bus.wait_ask(dvc11xx_iic_index)){
        return false;
    }
    for (i = 0; i < len; i++){   
        dvc11xx_iic_bus.send_byte(dvc11xx_iic_index,buf[i]);
        if (dvc11xx_iic_bus.wait_ask(dvc11xx_iic_index)){
            return false;
        }
        if (i == 0){
            temp[0] = 0x40;
            temp[1] = adr;
            temp[2] = buf[i];
            crc8 = crc8_calc(temp,3);
        }else{
            temp[0] = buf[i];
            crc8 = crc8_calc(temp,1);
        }
        dvc11xx_iic_bus.send_byte(dvc11xx_iic_index,crc8);
        if (dvc11xx_iic_bus.wait_ask(dvc11xx_iic_index)){
            return false;
        }
    }
    dvc11xx_iic_bus.stop(dvc11xx_iic_index);
    return true;
}

/**
 * @brief 读DVC1124寄存器
 * 
 * @param adr 
 * @param len 
 * @param buf 
 * @return true 
 * @return false 
 */
bool dvc11xx_read_regs(uint8_t regAddr,uint8_t regLen){
    uint8_t i = 0;
    for (i = 0; i < 20; i++){
        if (dvc11xx_read_bytes_crc8(regAddr, regLen, (uint8_t *)&g_AfeRegs+regAddr)){
            return true;
        }
    }
    return false;
}

/**
 * @brief 写DVC1124寄存器
 * 
 * @param adr 
 * @param len 
 * @param buf 
 * @return true 
 * @return false 
 */
bool dvc11xx_write_regs(uint8_t regAddr,uint8_t regLen){
	uint8_t i = 0;
    for (i = 0; i < 5; i++){
        if (dcv11xx_write_bytes_crc8(regAddr, regLen, (uint8_t *)&g_AfeRegs+regAddr)){
            return true;
        }
    }
    return false;
}

static void dvc11xx_i2c_wakeup(void){
	hc32_pin_mode(IIC_SCL_PIN,PIN_MODE_OUTPUT);
	hc32_pin_mode(IIC_SDA_PIN,PIN_MODE_OUTPUT);
	
	hc32_pin_write(IIC_SCL_PIN,PIN_HIGH);
	hc32_pin_write(IIC_SDA_PIN,PIN_LOW);
	Delay_ms(5);
}

void drv11xx_init(){
	dvc11xx_i2c_wakeup();
	dvc11xx_iic_index = drv_i2c_register(IIC_SCL_PIN,IIC_SDA_PIN,&dvc11xx_iic_bus);
	while(dvc11xx_iic_index < 0){
		printf("bq i2c bus register failed,dvc11xx_iic_index = %d\n",dvc11xx_iic_index);
		Delay_ms(1000);
	}
}

